Microstructural and tensile characterization of Inconel 718 laser coatings for aeronautic components
Microstructural and tensile characterization of Inconel 718 laser coatings for aeronautic components
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DOI：
10.1016/j.optlaseng.2013.01.011
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发表时间：
2013-07-01
影响因子：
4.6
通讯作者：
Sanz, Carmen
中科院分区：
文献类型：
--
作者：
Lambarri, Jon;Leunda, Josu;Sanz, Carmen
评价了激光熔覆技术在Inconel 718航空零件制造和修复中的适用性。多层涂层沉积在Inconel 718板，使用连续波Nd：YAG激光。采用光学显微镜和扫描电子显微镜研究了激光熔覆样品的显微组织，并测量了不同热处理阶段后的显微硬度分布。最后，对从大量多层涂层中提取的完全老化的样品进行拉伸试验。结果表明，所得涂层满足航空应用的工业要求，其机械性能远高于最低规定值，并且在热处理后没有留下有害相或沉淀物。(C)2013爱思唯尔有限公司保留所有权利。
The suitability of the laser cladding technique for manufacturing and repairing aeronautic components of Inconel 718 was evaluated. Multilayer coatings were deposited on Inconel 718 plates, using a continuous wave Nd:YAG laser. The microstructure of the laser cladding samples was investigated using optical and scanning electron microscopy and microhardness profiles were measured after different heat treatment stages. Finally, tensile tests were carried out on fully aged samples extracted from a massive multilayer coating. It was proven that the resulting coatings satisfy the industrial requirements for aeronautic applications, with mechanical properties well above the minimum specified values and with no detrimental phases or precipitates left after the heat treatment. (C) 2013 Elsevier Ltd. All rights reserved.